To a large degree, since the beginning of time, charisma or the lack of it has impacted upon those in quest of acclaim. As media expands, this has become ever more vital. Thus, demeanor if unappealing, can defeat one's likelihood of success, causing the death of prospects whilst they are still embryonic.
There are certain people in our popular culture that just capture people's imaginations. And in death, they become even larger. Now, I have to admit that it's also fed by a 24/7 media that is insatiable.